Home / 989,916.80-1,484,875.20-358,851.20

Finding the Fourth Proportional to 989,916.80, 1,484,875.20 and 358,851.20

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Solution

The fourth proportional to 989,916.80, 1,484,875.20 and 358,851.20 is: 538,276.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,916.80 : 1,484,875.20 = 358,851.20 : x
  2. Step 2: Convert to fraction form
    989,916.80/1,484,875.20 = 358,851.20/x
  3. Step 3: Cross multiply
    989,916.80x = 1,484,875.20 × 358,851.20
  4. Step 4: Simplify right side
    989,916.80x = 532,849,247,370.24
  5. Step 5: Solve for x
    x = 532,849,247,370.24/989,916.80
  6. Step 6: Final answer
    x = 538,276.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.